Alternatives to RetentionForce for all platforms with any license

Know any alternatives we haven't listed?
We want more alternatives to RetentionForce. Feel free to add any alternative that you know of, or ask your friends on  Twitter or Facebook if they can help out.

Platforms

Show 3 less popular platforms

RetentionForce Comments

Echo echo ... Feels empty in here

Maybe you want to be the first to submit a comment about RetentionForce? Just click the button up to your right!